Match Document Document Title
US20080068939 OBJECTIVE LENS ACTUATOR, DIFFRACTIVE OPTICAL ELEMENT, AND OPTICAL PICKUP DEVICE  
An objective lens is directly fixed to one surface of a lens holder. Driving coils that generate focusing thrust and tracking thrust are provided in the lens holder, which is elastically supported...
US20090323480 OPTICAL STORAGE SYSTEM AND SPHERICAL ABERRATION COMPENSATION APPARATUS AND METHOD THEREOF  
An optical storage system and a spherical aberration (SA) compensation apparatus and method thereof are provided. The SA compensation apparatus includes a microprocessor and a...
US20080205248 Optimization Spherical Aberration to Determine Current Layer  
A spherical aberration correction mechanism is optimised early in the start-up process by measuring responses for various settings of the spherical aberration correction device that are removed...
US20100008211 Information reproducing apparatus and information reproducing method  
An information reproducing apparatus has a medium with a linear tracking mark extending in a scanning direction and a linear data mark extending in a direction orthogonal to the scanning...
US20130044575 METHOD FOR DETECTING PROTRUSION HEIGHT OF MAGNETIC HEAD SLIDER HAVING THERMALLY ASSISTED HEAD  
A magnetic head slider includes a near-field light generator, an incorporated heater is activated to thermally-expand the magnetic head slider so that a first protrusion is generated on the air...
US20050213471 Reflecting optical element and optical pickup device  
A reflecting optical element has a phase difference adjusting reflective film, which is formed on an interface between a medium optically denser than air and air and reflects light in the medium....
US20070086286 WOBBLE SIGNAL SYNTHESIZER AND METHOD FOR GENERATING SYNTHESIZED WOBBLE SIGNAL SYNCHRONIZED WITH PHYSICAL WOBBLE SIGNAL THROUGH COMPARING PHASES OF BOTH LAND PRE-PIT SIGNAL AND SYNTHESIZED WOBBLE SIGNAL WITH A REFERENCE CLOCK  
A wobble signal synthesizer for generating a synthesized wobble signal synchronized with physical wobble signal is disclosed. The wobble signal synthesizer includes a variable-period signal...
US20070153668 Data storage device utilizing carbon nanotubes and method for operating  
The present invention provides a data storage device that includes a medium capable of recording information, a movable arm above the medium, a carbon nanotube, a driving electrode and a focusing...
US20150221324 NEAR FIELD TRANSDUCER HAVING NOTCH DIFFUSION BARRIER  
An apparatus according to one embodiment includes a near field transducer comprising a conductive metal film having a main body, a notch extending from the main body, and a notch diffusion barrier...
US20080144478 VINYL RECORD TURNTABLE HAVING INTEGRATED DOCKING STATION FOR A PORTABLE MEDIA PLAYER  
An improved disc jockey turntable is disclosed. The turntable includes a housing having an I/O circuit, an audio output electrically connected to the I/O circuit, a rotatable platter configured...
US20070115773 METHOD FOR ADAPTIVELY DRIVING A TRACKING ELEMENT WITH MECHANICAL DEVIATION AND DEVICE USING THE SAME  
The present invention provides a method for adaptively driving a tracking element with mechanical deviation and a driving device using the same. The method comprises the following steps: recording...
US20100014404 WRITING DEVICE, RECORD CARRIER AND METHOD OF WRITING INFORMATION BLOCKS, AND READING DEVICE FOR READING INFORMATION BLOCKS  
Reading a partly written writable record carrier having a track structure for positioning the write head above unwritten areas of the track pattern by means of a reading device which positions the...
US20050125087 Promotional portable music players  
A digital audio player, including a casing, a memory within said casing for storing digital audio including songs and a commercial, a digital-to-analog converter within said casing and operatively...
US20100091620 DISK DRIVE, DISK FEEDING DEVICE, AND DISK LOADING MECHANISM  
The present invention provides a disk drive with a compact size that makes it possible to effectively utilize space within a disk drive and permits a straightforward layout of members. The disk...
US20070286056 High Speed Electromechanical Shutter  
An electromechanical shutter device comprising a base member and a shutter assembly comprising: an electrical current source member; a shutter member movable between a light beam blocked position...
US20080253256 APPARATUS FOR WRITING DATA AND REDUNDANCY DATA ON A STORAGE MEDIUM  
Apparatus for writing data and redundancy data on a storage medium, the storage medium having a defined geometrical structure, the apparatus has a writer for writing data and redundancy data onto...
US20070025221 Optical disc device and hybrid optical disc  
When a hybrid optical disc is loaded on a player, the next generation DVD layer is reproduced in preference to the DVD layer. Jump to the DVD layer is appropriately performed based on the content...
US20140307533 LIGHT SOURCE ALIGNMENT FOR HEAT ASSISTED MAGNETIC RECORDING  
An approach for aligning a light source on a slider involves filtering light emerging from the air bearing surface of a (ABS) of a heat assisted magnetic recording (HAMR) slider. A first portion...
US20090097378 DATA TRANSMISSION OPTICAL DEVICE COMPRISING A SOURCE EMITTING A LASER BEAM  
The present invention relates to a data transmission optical device including a source emitting a laser beam for transmitting the data toward an optical sensor. The device has means for...
US20050180295 Optical pickup apparatus and diffractive optical element for optical pickup apparatus  
An optical pickup apparatus, includes: first-third light sources emitting first-third light fluxes respectively; a diffractive optical and; an objective optical system having a light converging...
US20070253309 Optical disk apparatus and driving method thereof  
An optical disc apparatus records information onto plural disc shaped mediums of different standards or reproduces information from the plural disc shaped mediums. The optical disc apparatus...
US20090109817 MEDIA DISC RELIABILITY  
Damage to removable or non-removable media or to content on the media may prevent access to content on the media. A processor may recognize a defect in the media, for example, due to read errors....
US20060028925 Processing scheme for domain expansion rom media  
The present invention relates to a domain expansion storage medium and processing method for processing a substrate (40) of such a storage medium with improved efficiency. The surface structure of...
US20120182856 SPINDLE MOTOR  
A spindle motor includes a rotor including a rotary shaft and magnets, a stator including a bearing, which supports the rotary shaft, and an armature corresponding to the magnets. The rotor is...
US20060245341 REUSABLE STAMPER FOR OPTICAL DISK  
A disk for optical storage media is being embossed with information during the injection molding process on both sides. Using 2 such disks, a reflective coating is being applied on the front side...
US20090028022 SINGLE SPOT CROSS-CORRELATION TRACKING  
A tracking error (TE) signal is formed from a single spot on a photodetector 25 to improve the robustness in optical disc applications having a reduced track-pitch. Reduced track pitches are...
US20060114806 Information storage medium  
An information storage medium as an example of this invention includes a recording layer formed by a dye material having a predetermined sensitivity level or more to both a light beam having a...
US20090252022 Method of Manufacturing Synthetic Resin Lens, Method of Manufacturing Reformed Synthetic Resin Material and Optical Pickup Apparatus  
A method of manufacturing a synthetic resin lens, comprising: adjusting a degree of change in transmittance of a lens member made of synthetic resin for a blue violet laser beam with accumulated...
US20090122665 METHOD OF CONTROLLING PLAYBACK CONDITION, OPTICAL DISK, OPTICAL DISK DRIVE DEVICE AND PROGRAM  
Playback durability of a writable optical disk is ensured. A method of controlling a playback condition includes continuously irradiating an optical disk with a laser beam having a power level...
US20050265187 METHOD FOR DETERMINING THE TYPE OF DIGITAL VERSATILE DISC  
A method for determining the type of a digital versatile disc (DVD) so that a DVD+ can be distinguished from a DVD−. The main steps for determining the type of a DVD include setting up related...
US20080074967 OPTICAL DISC SPARE AREA MANAGEMENT  
A spare area management method for a blu-ray rewritable disc and a disc drive implementing this method, as well as a novel blu-ray rewritable disc. The disc has a plurality of spare areas....
US20080123481 Method for Saving ther Keylockers on Optical Discs  
The present invention relates to a system with an integrated digital rights management mechanism. The system comprises a drive (120) and a host (130) controlling operations of the drive (120). The...
US20050259534 Changer type disc apparatus  
A changer type disc apparatus having a disc changer portion, on which plural discs are mountable, a recording/playing portion for recording a video signal on a disc mounted on the disc changer...
US20120002528 VARIABLE DELAY CIRCUIT, RECORDING APPARATUS, AND DELAY AMOUNT CALIBRATION METHOD  
Provided are a variable delay circuit, a recording apparatus, and a delay amount calibration method. The variable delay circuit includes a delay line in which a delay amount is variably set, a...
US20070206453 Multilevel nano-structure optical media with oriented tracking marks  
An optical data/information storage medium comprises a disk-shaped substrate with a data/information encoded surface having a plurality of concentric, radially spaced-apart data tracks formed...
US20090080307 Method of manufacturing optical head including the step of adjusting parallelism of light beam  
A method for manufacturing an optical head having a laser beam emitting device that emits a light beam of a predetermined wavelength, an objective lens that focuses the light beam on an optical...
US20070189135 Optical disc apparatus and disc management information acquisition method  
The present invention provides a method or an apparatus for recording data additionally by acquiring replacement data easily even when the latest disc management information cannot be read out of...
US20090245071 OPTICAL DISC DEVICE AND MEDIA TYPE DETERMINATION METHOD  
A device includes: an objective lens that serves as a lens having a first numerical aperture when a first optical beam corresponding to a first optical disc converges on the first optical disc...
US20080037385 Objective-lens driving apparatus and optical pickup and optical recording and reproducing apparatus for using same  
The objective-lens driving apparatus is provided with a yoke base, a lens holder provided on the yoke base, the objective lens provided to the center of the upper part of the lens holder,...
US20150146510 SERVER SYSTEM AND CONTROL METHOD FOR READ/WRITE INDICATOR LIGHT  
A server system and a control method for a read/write indicator light are disclosed, in which a serial general purpose input/output signal is issued when a read/write action occurs, a bit of...
US20070280079 ASYMMETRY MEASUREMENT APPARATUS  
An asymmetry measurement apparatus is disclosed. The asymmetry measurement apparatus is designed for detecting the recorded data reproduction waveform of an optical storage device in digital...
US20090010122 Aberration Detector and Optical Pickup With Same  
The first polarizing hologram element (2) is divided into a first area (2a) allowing a first light beam to pass through and a second area (2b) and a third area (2c) which allow a second light beam...
US20070202441 Optical storage medium using nanoparticles  
The present invention relates to an optical storage medium using nanoparticles, and more specifically to a multi-layer optical storage medium. According to the invention, the optical storage...
US20060077791 Objective lens element and optical pickup device provided with its object lens element  
An optical pickup device has an optical source 101 for emitting an optical beam, an objective lens element 103 positioned to receive the optical beam for focusing the beam on a medium 104, wherein...
US20080043587 Method for Buffering Data Streams Read from a Storage Medium  
A method for optimizing a scheduler for an optical pick-up reduces switch times required for seamless video angle switching. The pick-up reads data streams from different files on an optical...
US20080205207 Radial Tracking Method and Apparatus for an Optical Information Carrier Format with Non-Uniformly Spaced Tracks  
A radial tracking method for an optical information carrier format with non-uniformly spaced tracks is disclosed, wherein a plurality of tracks (21, 22, 23) are spaced apart at a track pitch TP2,...
US20070242593 Method and device for reading information from optical disc  
A method is disclosed for reading information from an optical disc (2) containing tracks (11, 21) with 2D-SCIPER coded information. The method comprises the steps of: generating at least one light...
US20050041570 Optical disc construction  
An optical disc such as a digital versatile disc (DVD) includes plural substrates which are bonded together to form a single disc structure. One of the substrates is manufactured so that regions...
US20120113782 STORAGE MEDIA DEFECT DETECTION  
Detecting a defect on a storage device is disclosed. Detecting includes receiving a signal read from a storage device, sampling the signal to obtain a set of signal samples, wherein the sampling...
US20090034400 Objective lens actuator and optical pickup device including the same  
An objective lens actuator includes a lens holder which holds an objective lens. A collision preventing portion which prevents collision of the objective lens and an optical disc and a cleaning...